<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图去 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model.lazy="queryInfo.query"
            @change="getUserList"
            clearable
            @clear="getUserList"
          >
          </el-input>
        </el-col>
        <el-col :span="7">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" style="width: 100%" border stripe>
        <el-table-column label="#" type="index"> </el-table-column>
        <el-table-column prop="username" label="姓名"> </el-table-column>
        <el-table-column prop="mobile" label="电话"> </el-table-column>
        <el-table-column prop="email" label="邮件"> </el-table-column>
        <el-table-column prop="role_name" label="角色"> </el-table-column>
        <el-table-column label="状态">
          <!-- 作用于插槽的使用 -->
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180">
          <template slot-scope="scope">
            <!-- 编辑按钮 -->
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              size="mini"
              icon="el-icon-delete"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top-start"
            >
              <el-button
                type="warning"
                size="mini"
                icon="el-icon-setting"
                @click="showSetRolesDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主题区域 -->
      <el-form
        ref="addFormRef"
        :model="addForm"
        :rules="addFormRules"
        label-width="80px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
         <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
         <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
         <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser"
          >确 定</el-button
        >
      </span>
    </el-dialog>

     <!-- 编辑对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @click="editDialogClosed"
    >
      <!-- 内容主题区域 -->
      <el-form
        ref="editFormRef"
        :model="editForm"
        :rules="editFormRules"
        label-width="80px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
         <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
         <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogClosed = false">取 消</el-button>
        <el-button type="primary" @click="updateUser"
          >确 定</el-button
        >
      </span>
    </el-dialog>

  <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRolesdialogVisible"
      width="30%"
      @close="setRoleDialogClosed"
    >
    <div>
      <p>当前的用户：{{userInfo.username}}</p>
       <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>

    </div>

    <span slot="footer" class="dialog-footer">
      <el-button @click="setRolesdialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
    </span>
  </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的校验规则
    var checkEmail = (rule, value, callback) => {
      // 验证邮箱的正则表达式
      const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }
    // 验证手机号cls的校验规则
    var checkMobile = (rule, value, callback) => {
      // 验证邮箱的正则表达式
      const regMobile = /^1([38][0-9]|4[579]|5[0-3,5-9]|6[6]|7[0135678]|9[89])\d{8}$/
      if (regMobile.test(value)) {
        // 合法的邮箱
        return callback()
      }
      callback(new Error('请输入合法的手机号码'))
    }
    return {
      // 获取列表的查询参数
      queryInfo: {
        query: '',
        // 当前的页码值
        pagenum: 1,
        // 当前的页数
        pagesize: 5
      },
      // 用户列表
      userList: [],
      // 总记录数
      total: 0,
      // 控制添加对话框的隐藏与显示
      addDialogVisible: false,
      // 添加用户表单的数据
      addForm: {},
      // 添加用户表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 15, message: '长度在 3 到 15 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 36到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制编辑对话框的隐藏与显示
      editDialogVisible: false,
      // 编辑表单
      editForm: {},
      // 编辑表单的验证规则
      editFormRules: {
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 36到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制编辑对话框的隐藏与显示
      setRolesdialogVisible: false,
      // 当前用户的信息
      userInfo: {},
      // 所有的角色列表
      rolesList: [],
      // 选中的角色id的值
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('用户列表获取失败')
      }
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听pageSize改变的事件
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch事件的改变
    async userStateChanged (row) {
      console.log('111111111' + row.id)
      const { data: res } = await this.$http.put(
        `users/:${row.id}/state/${row.mg_state}`
      )
      if (res.meta.status !== 200) {
        row.mg_state = !row.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 点击按钮，添加用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', { ...this.addForm })
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // 隐藏添加对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 修改用户表单
    updateUser () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        // 关闭编辑对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户信息成功')
      })
    },
    // 显示编辑对话框
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询到的用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 添加对话框关闭后，重置表单
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 编辑对话框关闭后，重置表单
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 根据id删除用户
    async removeUserById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(error => error)
      // 如果用户确认了删除，咋返回字符串confirm
      // 如果用户取消了删除，则返回字符串cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消了删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    // 控制分配角色对话框的隐藏与显示
    async showSetRolesDialog (user) {
      this.userInfo = user
      // 在展示对话框之前，先获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolesList = res.data
      this.setRolesdialogVisible = true
    },
    // 分配用户角色
    async saveRoleInfo () {
      console.log('ssssss ' + this.userInfo.id + '  ' + this.selectedRoleId)
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectedRoleId
      })
      console.log('ssssss ' + res)
      if (res.meta.status !== 200) {
        return this.$message.error('分配角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.showSetRolesDialog = false
    },
    // 分配角色对话框的关闭事件
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>
<style scoped>
.el-pagination {
  text-align: center;
  margin-top: 25px;
}
.el-table {
  margin-top: 25px;
  font-size: 15px;
}
.el-breadcrumb {
  margin-bottom: 12px;
}
.el-card {
  box-shadow: 0 1px 1px rgb(0, 0, 0, 0.15) !important;
}
</style>
